Everard f



E. r. MILLER. v APPARATUS FOR MANUFACTURING CATHETER! AM) THE HIE.

APPLICATION FILED NOV: 3. "2

1,404,042, Patented Jan. 17, 1922.

UNITED STATES PATENT OFFICE.

EVERAJRD F. KILLER, 0F ASHL D, OHIO, ABBIGNOB TO THE FAULT-L188 RUBBER,CODA-NY, 0F ASHLAHD, OHIO, A CORPORATION OF OHIO.

mmrns roammuracrnamo cA-rns'rmzs AND THE LIKE.

Specification .1 Iiettersl'atent. Pat t Jan, 17, 192

Application filed Iovember 8, 1821. Serial Ilo. 518,682.

tube .with the rubber tube inserted therein To all whom it may cont-em:

and after vulcanization has taken Be it known that I EVERARD F. MILLER,a citizen of the United tates, residing at Ashland, county of AshlanState of Ohio, have invented certain new and useful Improvements in-Adpparatus for Manufacturin rolled into the Catheters an the like, ofwhich the follow- Figure 41s a view similar to Figure 3,

in is a specification. shown the tube after vulcanization and reii'invention relates to the manufacture moval mm the exterior tube. of bbercatheters, stomach tubes, and the Figure 5 is a similar view showing themp eted article.

like, and. has for its object to. provide an co Improved apparatus forvulcanlzing such umlar numerals of reference denote articles, and at thesame time forming therecorrespondin parts in the several views. in thedepression in one side near the closed In the sai drawing, the referencenuend wherein the aperture mere] 1 denotes the exterior tube formed withthe interior of the tube afterwards ofmeta preferably of aluminum onaccount is made to com lets the sam of its tness, the same being flaredat its In the manu acture of these articles hereopen en at 2 andclosedinto a blunt point tofore, it has been the practice, first, toinsert into one end of a suitable length of unvulcanized rubber tubin ra plug of similar unvulcanized rubber; then to roll that end surface ofsaid tube transversely as s own at 4, said cut extending sufiicient yinto the body of the tube on a strai lit line to intersect its interiordiameter, I form an. elongated aperture 5 therein in a manner readilyunderstood, the wall of the tube around said aperture forming a seat.Adapted tofit in said out or groove is a closure member 6, formed on itsinner surfacewith a protuberance 7 adapted substantially to fit theaperture 5, said closuremeiri berbeing shaped on its exterior surfacesubstantially to conform to the exterior contour of the tub: I.

projecting elongated pgotuberance' of a shape to form in the t whenvulcanized a epression in one side thereof near its with the interior ofthe tube at that point. The glass tube with the-rubarticle thus insertedthen is subjected a thickness suflicient to cause it when posi- ,tion,edto roject slightly beyond the exterior surflice of the tube 1 and at itsend nearest the blunt oint 8 of said tube 1, form a transverse ad 8 fora purpose hereinafter to be described. Mounted slida ly upon the tube 1is a coiled spring 9, possess suliicicnt resiliency, when the. closuremember 6 is positioned in said thereover and firmly engage 1e same toretain it in its adjusted position with considerable pressure, thetransverse ad acting as a stop to limit the movement of said spring inthat direction. By making the closure member 6 slightly pro'ecting abovethe surface of the tube 1, as ereinbefore described, it will beunderstood that the spring when forced thereover will be ut ration ofcutting the hole therein. as herembefore described. Devices of thischaracter are highlv objectionable primarily forthe reason t at it issomewhat diflicult. first, to insert into the glass tube the rubber tubeto be shaped and vulcanized. because of the inward projection which.must be passed.

y invention is intended primarily to t obviate this objection, which Iaccomplish protuberance, b can be inserted into position after therubber tube is inserted into the exterior tube, and which may be removedtherefrom before the withdrawal of the vulcanized tube.

In the accompanying drawingz- Figure 1 is a perspective view of myirnproved device with the protuberance carth rying section showndetached.

Figure 2 is an enlarged longitudinal secn operation, the closure member6 is retional view of the closed end of the outer moved. and the rubbertube 10 to be Vulcan ized is inserted into the tube 1 to the positionshown in Figure 2, where its pointed end will. lit the interiorconfiguration of said outer. tube, and upon the insertion of the closuremember 6 to position the protuberance 7 thereof will be forced into theside 8 of said tube 10, forming therein the depres- 'sion 11 shown inFigure l. The spring 9 is then slid over the closure member 6, retainingit firmly in position, whereupon the tube 1 with its contained tube 10may be subjeeted to the usual vulcanizing operation, thereby fixing insaid tube 10 the depression 11 in a manner readily understood. lpon thecompletion of the vulcanizingoperation, the. spring 9 may he slidbackwards. and the closure member 6 removed, which will permit the readwithdrawal 6f the tube 10 from the one osing tube 1. The article soEemduced, as shown in Figure 4, may then completed by forming thereinthe aperture 12, the same communicating with the interior of said tube.

In Figure 2, which is a viewof the article after vulcanization iscompleted, the plug which has been inserted in the end of the tubeIO-has become incorporated with the body of said tube, and thereforedoes not inner surface that would meet Show as a separate element. Itwill be understood that the object of inserting this plug is to closethat end of the tube against the collection of matter in its use, makingthe articlevery much more sanitary than it the same were omitted.However, no claim is made to this feature of the article. as the Samehas been for sonic time well known in the manufacturiof this class ofdevices.

In the manufacture of these articles heretofor'e, it has been thepractice to form the. outer tube 1 of glass, primarily for the reasonthat it would be a wry dillicult matter to make a metal tube with aprojection on its the requirements, for thc reason that a very smoothsurface is rl-quircd. which would bc almost impossible to obtain. l'iysubstituting a l'QlllUV' able projection. it is possiblc to employmetal. such as allnninunuaud polish lhc illside thereof to as high adcgrcc as ncccssary before closing onc cnd thereof by a spinningprocess. ["urlln-rnmrr. in illllllfllill}! glass tubes in thc nmnui'alurc ol' ibcsc nrlich-s. it has been nc cssary in drau ihc nriiclcs topliirc by forminga small lmlc in thc chm-d end of thc glass iubc l andapplying lbcrctn a vacuum. or by droppin; ihc unud anizcd artichiutoline tn c and ih n pounding the end gently on a wooden block in order toforce it'past into place. By using determined when the ru erly insertedto its limit therein. Wit my improved construction, the necessity foremploying glass is obviated, as there is no obstruction to thecompleteinsertion of the rubber tube, and, therefore, no necessity for visualinspection thereof. It also will be understood that in employing glassfor this purpose, its fragile character is such that the breakagebecomes a serious expense, which is obviated by employing metal ashereinbefore described.

Havin thus described my invention, what I c aim as new and desire tosecure by Letters Patent, is 1- 1.- An apparatus of the characterscribed, comprising a rulcanizing tube closed at one end and apertnredin .its side near said closed end, a closure member adapted removably tofit said aperture and having a' protuberancomn its inner face adapted toprojert into said tube when said closure member is positioned thcrcin.and means for locking;

less it also can be her tube 10 is prop- ;said losure member in positionin said tube.

2. .\n apparatus of tlucharacter described. comprising a vulcanizingtube closed at one cod and apcrturcd in its side near said closed cnd. aclosure member adapted rcmoi'ably to iit said aperture and having aprotnlu-ram'c on its inner face adapted to projcct into said tube whensaid closnrc incmbcr is positioned therein, and a coiled spring slidablymounted on said tube for detachably engaging over said closure member tolock the same in position in said tube.

3. .\n up mratus of the character described, col prising a vulcunizingtube closed at onennd and cut away on one side ncaisaid closcd ollil toform an elongated a icrlurc ihcrcin surrounded by a flat wall, aclosure. na-inbc adapted rclnorably to lit said apcrlurc and lniaing aprotuberance on its inncr l'ncc adapted .to project into said tube whcnsaid closnrc member is msitioucd lin-rcin. said cxicrior surface of saidclosure nicnibcr conforming to the cxtcriur contour pl' lhc lubc. and a.ruilml spring slidably punndcd on said tube for dclachably engagin; uu'r:-;|i(i closure mcmbcr to lock the sonic in po ilion in said tube.

in lcsiilnnn uiu-rcnl' l ln-rcunln aliix my ignature.

de- I the depression and gradually

